Scow



cjKuLMAN.

SCOW.

mPPucATloN FILED MAY le. 192|.

Patented Nov. 22, 1921.

UNITED STATI-.1st

PATENT OFFICE.

CHARLES KULMAN, OIF BROOKLYN, NEW YORK, ASSIGNOR OF GIVE-HALF T0 ALBERT E.

THOMAS, OF WEST NEW YORK, NEW JERSEY. I

scow.

Specification of Letters Patent.

Patented Nov. 22, 1921.

To all whom t may concern Be it known that I CHARLES KULMAN, .i citizen of the United tates, and resident of Brooklyn, in thecounty of Kings and State of New York, have invented certain new and useful Improvements in Scows, of which the following is a specification.

My invention relates to improvements in dumping scows and more particularly to a scow adapted to dump fioating matter. The main object of the invention 1s to provide a scow which will not only satisfactorily dump heavy materials which will sink through tra. doors in the bottom of the scow, but wi l also satisfactorily dump light ioating matter. Further and more specific objects, features and advantages will more clearly appear from the detail description given below taken in connection with the ac eompanying sheet of drawings which form a part of this specification. In the drawings, Figure 1 is a longitudinal vertical section through a scow embodying my improvements in a preferred form and Fig. 2 is an end view of the same.

Referring to the drawings, 3 indicates a, scow having a central opening divided into a plurality of compartments 4 by means of transverse partitions 5 and forward and rear end walls 6. The scow is built out around these compartments forming water tight buoying chambers 7 at the ends and similar chambers 8 along the sides. The partitions 5 and 6 do not extend down to the bottom of the scow but the bottom of the partitions is above the water line when the scow is light, this water line being indicated at 9. Below the compartments 4 the scow is provided with trap doors 10 hinged as at 11, to the bottom of the side walls of the scow and adapted to be operated by chains 12 passing over winches 13 so that the doors may be dropped and opened to dump out material from the compartments. These. serve well for dumping heavy material which will sink but much difliculty has been encountered in dumping floating material from such scows because it will not sink through the bottom trap doors. I, therefore, provide openings 14 through the forward and rear end walls of the scow, the tops of which are above the water line when the scow is light; so that floatin matter remaining in the scow be flus ed out through the opening in the rear wall ofthe scow as the scow is moved through the water. ABy having such openings yin bothl ends thecleaning of the scow from floating matter may be accomplished by moving the scow in either direction. When loading and until it is desired to dump the scow the end openings 14 may be closed by trap doors 15 hinged at 16 to the side walls and operated by chains 17 passing over winches 18. The chains preferably pass through pipes 19 set in the end chambers 7 and so that the chambers 7 are still kept water-tight. When it is desired to flush out floating matter the Winches 18 are operated to release the doors 15 causing them to swing downwardly and outwardly about the pivots or hinges 16 located -along the side edges of the doors so that the end openings are thereby fully opened.

While I have described my improvements in great detail and with respect to a preferred form thereof, I do not desire to be limited to such details or form since many changes and modifications may be made and the invention embodied in widely different forms without departing from the spirit and scope thereof in its broader aspects.

What I claim and desire to secure by Letters Patent, is: l

1. A dumping scow having an opening through the vrear wall thereof, out through which material in the scow may flow and a door for said openin hinged to swing downwardly and outwar y to open the opening.

2. A dumping scow havin an opening through the rear wall thereo out through which material in the scow may flow, the top of said opening being above the water line when the scow is light and a door for said opening pivoted at one of its side edges to swing outwardly to open said opening.

3. A dumping scow having a plurality of transverse partitions therein and an opening through the rear wall of the scow out through which material in the scow may flow, the top of said opening and the bottom of said partitions bein above the water line when the scow is lig t and doors for said opening, each door being hinged at one of its side edges to swing downwardly and outwardly to open said o ening.

4. A dumping scow aving openings through the forward and rear walls of the scow respectively, out through which material inthe scowmay How and doors for elosing said openings said doors being hinged to swing'downwardly to open said openings.'

11A dumping fsoow- 'having anbpening through the rear wall thereof,v out through which material in the snow may flow, the top of saidropening being above the water line when the soow is light and trap doors for closing said openingsaid doors being hinged to swing outwardly to open said opening.

6. A dumping soow havingbottom trap doors for dumping andV an opening through an endwall of theoso'ow out through Vwhich material inthe soow may ow, and means or'olosing said opening said'means includ,

ing aldoor hinged to swing downwardly and forward and .rear walls of the soow respectively7 out through which material. in the Vsnow may Hows, and doors for closing said openings, the top of said openings being above the waterline when the scow is light and said doors beine pivoted to swing outwardly awayrorn t e body of the soow.

Signed at New York,l in the county of New York, and State of New York, this 13th day' of Mayg'A. D. 1921. ,I

Y CHARLESKULMAN. 

